CN220343694U - Atomizing device for generating aerosol and heating assembly - Google Patents

Abstract

The present utility model relates to an atomizing device and a heating assembly for generating an aerosol. The electric heating element can heat the corresponding heating areas, more than two heating areas are arranged, and aerosol generating substrates can be independently heated through the heating areas. A pipe wall thinning part is arranged between at least one pair of adjacent heating areas, and the heat transfer speed between the adjacent heating areas is slowed down through the pipe wall thinning part. When one of the adjacent heating zones heats, the heat of the heated part of the working heating zone is more concentrated, the heat utilization rate is higher, the heat loss is smaller, and the independent heating efficiency of the heating zones is improved.

Description

Atomizing device for generating aerosol and heating assembly

Technical Field

The utility model relates to the technical field of atomizing devices, in particular to an atomizing device for generating aerosol and a heating assembly.

Background

The atomizing device can be used to generate an aerosol for inhalation by a user. Atomizing devices for generating aerosols are generally classified into two main types, one of which is an atomizing device for heating an aerosol-generating liquid, and an electric heating element is used to heat and atomize the aerosol-generating liquid by adding the aerosol-generating liquid to the atomizing device, thereby generating aerosols. The other type is to heat a solid aerosol-generating substrate, specifically, to insert the aerosol-generating substrate into a heating tube of an atomizing device, and heat the aerosol-generating substrate through the heating tube to generate an aerosol. The heating tube generally needs to control the temperature when heating the aerosol-generating substrate so that the material for generating an aerosol in the aerosol-generating substrate generates an aerosol in a non-combusted state.

At present, when aerosol is generated by adopting an aerosol generating substrate, the overall heating temperature of a heating pipe in the atomizing device is higher. When the suction is started, the mouth is easy to scald due to the fact that the temperature of the aerosol is high and the water vapor in the aerosol is more. In order to conveniently control the heating temperature of the heating pipe, a heating area which generates heat independently is usually arranged on the heating pipe, so that the corresponding heating area is selected to heat according to the requirement, and a part of the area of the aerosol generating substrate is heated to generate aerosol. Although the whole temperature of the aerosol can be reduced in this way, the heat transfer between the heating areas is fast at present, and when one heating area is heated, more heat is diffused outside other heating areas, so that the temperature of the heated part of the aerosol generating substrate is slowly raised, the independent heating effect is poor, and the problem of large heat loss exists.

Disclosure of Invention

The utility model aims to provide a heating assembly which is used for solving the technical problem that the independent heating effect is poor due to the fact that heat conduction between independent heating areas is fast in the existing heating assembly.

In addition, the utility model also aims to provide an atomization device for generating aerosol.

According to a first aspect, there is provided in one embodiment a heating assembly comprising a heat pipe and an electrical heating element disposed on the heat pipe; the heat conducting pipe is provided with a heating cavity for inserting an aerosol generating substrate, the pipe wall of the heat conducting pipe comprises at least two heating areas, the number of the electric heating elements is at least two, each heating area corresponds to at least one electric heating element, and the electric heating elements are used for heating the corresponding heating areas; the wall thickness of the pipe wall thinning part is smaller than that of the heating area.

Further, in an embodiment, an outer side of the tube wall thinning portion faces the heat conducting tube inner recess and/or an inner side of the tube wall thinning portion faces the heat conducting tube outer recess.

Further, in an embodiment, the pipe wall thinning portion is disposed between any pair of adjacent heating areas.

Further, in one embodiment, the heating zone includes a first heating zone and a second heating zone, the first heating zone and the second heating zone are arranged adjacent to each other in a circumferential direction of the heat conductive pipe, and the pipe wall thinning portion extends axially along the heat conductive pipe; or the first heating zone and the second heating zone are adjacently arranged in the axial direction of the heat conducting pipe, and the pipe wall thinning part continues along the circumferential direction of the heat conducting pipe.

Further, in one embodiment, the electric heating element is laid on the outer surface of the heat conducting pipe; or the electric heating element is coated on the inner surface of the heat conducting pipe; or the electric heating element is embedded into the pipe wall of the heat conducting pipe.

Further, in one embodiment, the heat conducting tube comprises an air flow heating section and a generating rod heating section, the air flow heating section and the generating rod heating section are arranged in the axial direction of the heat conducting tube, and the air flow heating section is used for heating the air flow entering the aerosol generating substrate; a generating rod stopping structure is arranged in the airflow heating section and used for stopping the generating rod stopping structure from the end surface of the aerosol generating substrate inserted into the heating cavity so as to limit the depth of the aerosol generating substrate inserted into the heating cavity; the heating zone is located on the generating rod heating section.

In a further embodiment, a heat exchanger is disposed in the airflow heating section, the airflow heating section is in heat-conducting contact with the heat exchanger, and a plurality of airflow channels are disposed in the heat exchanger, and the airflow channels are used for passing airflow to heat the passing airflow.

In a further embodiment, the generating rod stopping structure is a drainage seat at one side of the heat exchanger, the drainage seat is provided with a generating rod stopping surface for being matched with the aerosol generating substrate in a stopping mode, the generating rod stopping surface is located at one side, facing away from the heat exchanger, of the drainage seat, a drainage hole is formed in the center of the drainage seat, and the drainage hole is used for guiding airflow to enter the aerosol generating substrate from the center of the end face of the aerosol generating substrate.

Further, in one embodiment, the heating assembly includes a first heat pipe socket and a second heat pipe socket, the heat pipe socket being sandwiched between the first heat pipe socket and the second heat pipe socket, the first heat pipe socket having a first socket hole through which the aerosol-generating substrate is inserted into the heating cavity, the second heat pipe socket having a second socket hole through which an airflow entering the aerosol-generating substrate is passed.

According to a second aspect, there is provided in one embodiment an atomising device for generating an aerosol, the atomising device for generating an aerosol comprising an aerosol-generating rod heating assembly and a power supply, the power supply powering the heating assembly, the heating assembly comprising a heat pipe and an electrical heating element arranged on the heat pipe; the heat conducting pipe is provided with a heating cavity for inserting an aerosol generating substrate, the pipe wall of the heat conducting pipe comprises at least two heating areas, the number of the electric heating elements is at least two, each heating area corresponds to at least one electric heating element, and the electric heating elements are used for heating the corresponding heating areas; the wall thickness of the pipe wall thinning part is smaller than that of the heating area.

Further, in an embodiment, an outer side of the tube wall thinning portion faces the heat conducting tube inner recess and/or an inner side of the tube wall thinning portion faces the heat conducting tube outer recess.

Further, in an embodiment, the pipe wall thinning portion is disposed between any pair of adjacent heating areas.

Further, in one embodiment, the heating zone includes a first heating zone and a second heating zone, the first heating zone and the second heating zone are arranged adjacent to each other in a circumferential direction of the heat conductive pipe, and the pipe wall thinning portion extends axially along the heat conductive pipe; or the first heating zone and the second heating zone are adjacently arranged in the axial direction of the heat conducting pipe, and the pipe wall thinning part continues along the circumferential direction of the heat conducting pipe.

Further, in one embodiment, the electric heating element is laid on the outer surface of the heat conducting pipe; or the electric heating element is coated on the inner surface of the heat conducting pipe; or the electric heating element is embedded into the pipe wall of the heat conducting pipe.

Further, in one embodiment, the heat conducting tube comprises an air flow heating section and a generating rod heating section, the air flow heating section and the generating rod heating section are arranged in the axial direction of the heat conducting tube, and the air flow heating section is used for heating the air flow entering the aerosol generating substrate; a generating rod stopping structure is arranged in the airflow heating section and used for stopping the generating rod stopping structure from the end surface of the aerosol generating substrate inserted into the heating cavity so as to limit the depth of the aerosol generating substrate inserted into the heating cavity; the heating zone is located on the generating rod heating section.

In a further embodiment, a heat exchanger is disposed in the airflow heating section, the airflow heating section is in heat-conducting contact with the heat exchanger, and a plurality of airflow channels are disposed in the heat exchanger, and the airflow channels are used for passing airflow to heat the passing airflow.

In a further embodiment, the generating rod stopping structure is a drainage seat at one side of the heat exchanger, the drainage seat is provided with a generating rod stopping surface for being matched with the aerosol generating substrate in a stopping mode, the generating rod stopping surface is located at one side, facing away from the heat exchanger, of the drainage seat, a drainage hole is formed in the center of the drainage seat, and the drainage hole is used for guiding airflow to enter the aerosol generating substrate from the center of the end face of the aerosol generating substrate.

Further, in one embodiment, the heating assembly includes a first heat pipe socket and a second heat pipe socket, the heat pipe socket being sandwiched between the first heat pipe socket and the second heat pipe socket, the first heat pipe socket having a first socket hole through which the aerosol-generating substrate is inserted into the heating cavity, the second heat pipe socket having a second socket hole through which an airflow entering the aerosol-generating substrate is passed.

According to the heating assembly of the above embodiment, the electric heating element can heat the corresponding heating zone, and the heating zone has more than two heating zones, and the aerosol-generating substrate can be independently heated through the heating zone. A pipe wall thinning part is arranged between at least one pair of adjacent heating areas, and the heat transfer speed between the adjacent heating areas is slowed down through the pipe wall thinning part. When one of the adjacent heating zones heats, the heat of the heated part of the working heating zone is more concentrated, the heat utilization rate is higher, the heat loss is smaller, and the independent heating efficiency of the heating zones is improved.

Drawings

FIG. 1 is an isometric view of an atomizing device for generating an aerosol in one embodiment;

FIG. 2 is a front view of an atomizing device for generating an aerosol in one embodiment;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a schematic diagram of a heating assembly in one embodiment;

FIG. 5 is a schematic diagram of a heat pipe according to an embodiment;

FIG. 6 is a cross-sectional view of a heat pipe in one embodiment;

FIG. 7 is a schematic diagram of a heat pipe and an electric heating element according to an embodiment;

FIG. 8 is a schematic diagram showing the expanded positions of the heat pipe and the electric heating element according to one embodiment;

FIG. 9 is a schematic structural diagram of a drainage seat according to an embodiment;

FIG. 10 is a schematic view of a heat exchanger in one embodiment;

list of feature names corresponding to reference numerals in the figure: 1. an aerosol-generating substrate; 11. a suction end; 12. an air inlet end; 13. an aerosol-generating segment; 2. an electric heating element; 3. a heat conduction pipe; 31. a heating chamber; 32. a heating zone; 321. a first heating zone; 322. a second heating zone; 33. a tube wall thinning portion; 34. an insertion end; 35. a ventilation end; 36. an airflow heating section; 37. generating a rod heating section; 4. a heat exchanger; 41. an air flow channel; 42. a shell barrel; 43. a blocking edge; 44. positioning the bulge; 5. a drainage seat; 51. generating a rod stopping surface; 52. drainage holes; 53. a positioning groove; 6. a first heat conduction pipe seat; 61. a first tube socket hole; 62. a first base; 63. a sheath; 7. a second heat conduction pipe seat; 71. a second stem hole; 8. annular spacing; 9. a reflective film; 101. a power supply; 102. a housing.

Detailed Description

The utility model will be described in further detail below with reference to the drawings by means of specific embodiments. Wherein like elements in different embodiments are numbered alike in association. In the following embodiments, numerous specific details are set forth in order to provide a better understanding of the present application. However, one skilled in the art will readily recognize that some of the features may be omitted, or replaced by other elements, materials, or methods in different situations. In some instances, some operations associated with the present application have not been shown or described in the specification to avoid obscuring the core portions of the present application, and may not be necessary for a person skilled in the art to describe in detail the relevant operations based on the description herein and the general knowledge of one skilled in the art.

Furthermore, the described features, operations, or characteristics of the description may be combined in any suitable manner in various embodiments. Also, various steps or acts in the method descriptions may be interchanged or modified in a manner apparent to those of ordinary skill in the art. Thus, the various orders in the description and drawings are for clarity of description of only certain embodiments, and are not meant to be required orders unless otherwise indicated.

The numbering of the components itself, e.g. "first", "second", etc., is used herein merely to distinguish between the described objects and does not have any sequential or technical meaning. The terms "coupled" and "connected," as used herein, are intended to encompass both direct and indirect coupling (coupling), unless otherwise indicated.

The application provides a heating assembly and also provides an atomization device for generating aerosol, wherein the atomization device for generating aerosol can heat a solid aerosol generating substrate and enable the aerosol generating substrate to generate aerosol. In one embodiment, an atomizing device for generating an aerosol heats and does not burn an aerosol-generating substrate, the aerosol-generating substrate generates an aerosol when heated, no open flame is generated during heating, and harmful substances generated by pyrolysis of a conventional aerosol-generating substrate during combustion are reduced.

Referring to fig. 1 to 4, before describing the heating element in detail, first, an aerosol-generating substrate 1 as a heating object of the heating element will be described, wherein one end of the aerosol-generating substrate 1 is a suction end 11 for sucking aerosol, and the other end is an air inlet end 12 into which air flows, and the air inlet end 12 supplies air into the aerosol-generating substrate 1 during suction. In one embodiment, the suction end 11 of the aerosol-generating substrate 1 has a filter (not shown). The filter (not shown) may be made of any of a variety of materials that are available in the present or future, such as sponge, tipping paper, etc. The aerosol-generating substrate 1 comprises an aerosol-generating section 13, the aerosol-generating section 13 being for insertion into a heating assembly of an atomizing device. In the aerosol-generating section 13 there is an aerosol-generating substrate for generating an aerosol, which may be an aerosol filament or an aerosol sheet. In one embodiment, the aerosol-generating substrate 1 is a heated non-combustible rod, and the aerosol is generated by heating the aerosol-generating substrate without burning the aerosol-generating substrate.

In some embodiments, referring to fig. 1 to 4, the heating assembly includes an electric heating element 2 and a heat conducting tube 3. The electric heating element 2 is disposed on the heat conduction pipe 3 and is in heat conduction contact with the heat conduction pipe 3 to transfer the generated heat to the heat conduction pipe 3 to heat the aerosol-generating substrate 1.

The heat conducting contact in the application includes both direct contact and indirect contact capable of transferring heat, and various modes of indirect contact are available, such as coating heat conducting grease between the electric heating element 2 and the heat conducting tube 3, and for example, an insulating layer is added between the heat conducting tube 3 and the electric heating element 2 for ensuring safety.

Referring to fig. 3, 5 and 7, the heat pipe 3 has a heating chamber 31 into which the aerosol-generating substrate 1 is inserted, and the electric heating member 2 is mounted on the outer wall of the heat pipe 3 or embedded in the heat pipe 3. Specifically, any feasible scheme may be adopted for the electric heating element 2 and the heat conducting tube 3:

for example, referring to fig. 7, in one embodiment, the electric heating element 2 is disposed on the outer surface of the heat conducting tube 3. Specifically, the electric heating element 2 is a heating film printed on the outer peripheral surface of the heat conducting tube 3, at this time, the electric heating element 2 and the heat conducting tube 3 form a thick film tube together, an insulating layer is arranged outside the heating film, and at this time, the heat conducting tube 3 can be a metal tube with better heat conducting performance.

For another example, the electric heating element 2 may be embedded in the wall of the heat conducting tube 3. The electric heating element can be a resistance wire, and the heat conducting tube 3 is made of an insulating heat conducting material, and the periphery of the resistance wire can be coated with an insulating layer, and the heat conducting tube 3 can be made of an electric conducting material.

For another example, the electric heating element 2 may be an electric resistance wire wound around the outer wall of the heat conducting tube 3.

For another example, the electric heating element 2 is applied to the inner surface of the heat pipe 3.

Specifically, in one embodiment, one end of the heat conduction pipe 3 is an insertion end 34 into which the aerosol-generating substrate 1 is inserted, and the other end is a ventilation end 35 through which the air flow enters the heat conduction pipe 3. Both the insertion end 34 and the venting end 35 are open, and in some other embodiments the heat pipe 2 may be arranged in any feasible manner, for example, the heat pipe 3 may close the opening of the venting end 35 in the above embodiments, where gas enters the heat pipe 3 from the insertion end 34 and enters the gas inlet end 12 of the aerosol-generating substrate 1 through the gap between the heat pipe 3 and the aerosol-generating substrate 1.

Referring to fig. 7 and 8, the wall of the heat conducting tube 3 includes at least two heating areas 32, and the number of the electric heating elements 2 is at least two. Each heating zone 32 corresponds to at least one electric heating element 2, and the electric heating elements 2 are used for independently heating the corresponding heating zone 32. In a specific embodiment, referring to fig. 7, the number of electric heating elements 2 corresponds to the number of heating areas 32. The number of heating zones 32 is two, as are the number of electric heating elements 2. In some other embodiments, the number of heating zones 32 and the number of electric heating elements 2 may be increased as desired, such as by providing more than three heating zones 32. In some other embodiments, one heating zone 32 may correspond to more than two electrical heating elements 2.

The wall of the heat transfer tube 3 between at least one pair of adjacent heating zones 32 is provided with a tube wall thinning 33. The wall thickness of the tube wall thickness-reduced portion 33 is smaller than the wall thickness of the heating regions 32 to enable a reduction in the heat transfer rate between adjacent heating regions 32.

The wall thickness of the pipe wall thinning part 33 is smaller than that of the heating areas 32, so that heat is reduced in the speed of transmission through the pipe wall thinning part 33, only one heating area 32 in the adjacent heating areas 32 is heated and works, and when the other heating area 32 is not started to be heated, the heat transmitted to the heating area 32 which does not work is reduced, the waste of energy is reduced, the temperature of the heating area which is independently heated and works is increased more quickly, and the heating efficiency is higher.

In particular, in one embodiment, each heating zone 32 is capable of independently heating the aerosol-generating substrate 1 inserted into the heating chamber 31.

In one embodiment, the heating zones include a first heating zone 321 and a second heating zone 322, the first heating zone 321 is adjacent to the second heating zone 322, a wall thickness reducing portion 33 is disposed between the first heating zone 321 and the second heating zone 322, and a wall thickness of the wall thickness reducing portion 33 is smaller than a wall thickness of the first heating zone 321 and smaller than a wall thickness of the second heating zone 322, so as to reduce a heat conduction speed between the first heating zone 321 and the second heating zone 322.

The wall thickness of the pipe wall thinning part 33 is smaller than the wall thickness of the first heating zone 321 and smaller than the wall thickness of the second heating zone 322, so that heat is reduced at the speed of transmission through the pipe wall thinning part 33, only the first heating zone 321 heats and works, when the second heating zone 322 does not start heating, the heat transmitted to the second heating zone 322 is reduced, only the second heating zone 322 independently heats and works, and when the first heating zone 321 does not start heating, the heat transmitted to the first heating zone 321 is reduced, the energy waste is reduced, the temperature of the independently heated and worked heating zone rises faster, and the heating efficiency is higher.

It should be noted that, in the present application, the heating area 32 on the heat conducting tube 3 can independently heat the aerosol-generating substrate 1, and in practical use, the heating is not limited to only the first heating area 321 or only the second heating area 322, and according to practical needs, the first heating area 321 and the second heating area 322 may be simultaneously opened for heating, so that the whole heat conducting tube 3 heats the aerosol-generating substrate 1. For example, one heating strategy for the aerosol-generating substrate 1 is as follows:

when heating the aerosol-generating substrate 1 is started, since a certain amount of moisture is contained in the aerosol-generating substrate 1 and water vapor is contained in the aerosol generated after heating, if the aerosol temperature is too high at this time, the water vapor is easy to burn out when the aerosol is sucked, therefore, when heating the aerosol-generating substrate 1 is started, only the first heating region 321 is used to heat the aerosol-generating substrate 1, and after the moisture in the aerosol-generating substrate 1 is discharged, the first heating region 321 and the second heating region 322 are operated simultaneously, and the aerosol-generating substrate 1 is heated as a whole by the heat transfer tube 3.

As another example, a heating strategy of the aerosol-generating substrate 1 is as follows: the first heating zone 321 and the second heating zone 322 are arranged one above the other, wherein the first heating zone 321 heats one section of the aerosol-generating substrate 1, then the second heating zone 322 heats the other section of the aerosol-generating substrate 1, the first heating zone 321 and the second heating zone 322 work in a time-division manner, and the aerosol-generating substrate 1 is heated in a time-division manner, so that the number of openings of the aerosol-generating substrate 1 can be prolonged.

Further, in an embodiment, the outer side of the tube wall thinning portion 33 is recessed toward the inside of the heat conduction tube 3. In some other embodiments, the inner side of the wall thickness portion 33 is recessed outward of the heat pipe 3. In some other embodiments, the outer side of the wall thickness portion 33 is concave toward the inside of the heat transfer tube 3, while the inner side of the wall thickness portion 33 is concave toward the outside of the heat transfer tube 3. Since the inner side surface of the pipe wall of the heat pipe 3 is an outer concave cambered surface, the inner side surface of the pipe wall thinning portion 33 described in the application is concave outwards towards the heat pipe 3, which means that the pipe wall thinning portion 33 is concave outwards more than other areas, and further the pipe wall thickness at the pipe wall thinning portion 33 is smaller than that of other areas.

Further, in one embodiment, referring to fig. 7, the first heating area 321 and the second heating area 322 are disposed adjacent to each other in the circumferential direction of the heat conduction pipe 3, and the pipe wall thinning portion 33 extends along the axial direction of the heat conduction pipe 3.

The arrangement of the heating zones 32 on the heat-conducting tube 3 may take any feasible form, such as for example. In addition to the above arrangement, the first heating region 321 and the second heating region 322 may be arranged adjacently in the axial direction of the heat conduction pipe 3, with the pipe wall thinning portion 33 continuing in the circumferential direction of the heat conduction pipe 3; for another example, the number of heating areas 32 is four or more, at least two of which are disposed adjacently in the circumferential direction of the heat transfer pipe 3, and at least two of which are disposed adjacently in the axial direction of the heat transfer pipe 3.

The pipe wall thinning portion 33 may take any feasible shape, for example, a straight line shape or a curved shape may be used; a plurality of the above-mentioned materials may be intermittently arranged, or any shape such as a square shape or a circular shape may be used.

Further, in one embodiment, the heat conducting tube 3 comprises an airflow heating section 36 and a generating rod heating section 37, the airflow heating section 36 and the generating rod heating section 37 being arranged in the axial direction of the heat conducting tube 3, the airflow heating section 36 being adapted to heat an airflow entering the aerosol-generating substrate 1. A generating rod blocking structure is provided in the airflow heating section 36 for blocking with the end face of the aerosol-generating substrate 1 inserted into the heating chamber 31 to limit the depth of insertion of the aerosol-generating substrate 1 into the heating chamber 31. The heating zones 32 are each located on a generating rod heating section 37.

Further, in one embodiment, the heat exchanger 4 is disposed in the airflow heating section 36, and the airflow heating section 36 is in heat-conducting contact with the heat exchanger 4, and the heat exchanger 4 has a plurality of airflow channels 41, and the airflow channels 41 allow airflow to pass through to heat the airflow passing through. The heat exchanger 4 is used for uniformly heating the air flow, so that the heating efficiency of the air flow is improved.

Specifically, in one embodiment, referring to fig. 3 and 4, the airflow channels 41 of the heat exchanger 4 extend along the axial direction of the heat conducting tube 3, and a plurality of airflow channels 41 are uniformly arranged at intervals. In some other embodiments, the heat exchanger 4 may not be provided, and the air flow is directly heated after passing through the air flow heating section 36.

To further improve the uniformity of heating the aerosol-generating substrate 1, in one embodiment, the generating rod blocking structure is a drainage seat 5 located at one side of the heat exchanger 4, the drainage seat 5 has a generating rod blocking surface 51 for blocking engagement with the aerosol-generating substrate 1, the generating rod blocking surface 51 is located at one side of the drainage seat 5 facing away from the heat exchanger 4, the center of the drainage seat 5 has a drainage hole 52, and the drainage hole 52 is used for guiding air flow from the center of the end surface of the aerosol-generating substrate 1 into the aerosol-generating substrate 1.

In some other embodiments, annular protrusions may be provided in the heat conducting tube 3 to stop the end face of the aerosol-generating substrate 1; the heat exchanger 4 may also form a generating rod stopper structure, the heat exchanger 4 stopping the end face of the aerosol generating substrate 1.

Specifically, in one embodiment, both the drainage seat 5 and the heat exchanger 4 are interference-fitted in the heat conduction pipe 3. The heat exchanger 4 comprises a shell 42 and a flange 43 at one end of the shell 42. The blocking edge 43 is blocked with the ventilation end of the heat conduction pipe 3 to limit the insertion depth of the shell 42. In order to facilitate the positioning of the drainage seat 5, the shell barrel 42 of the heat exchanger 4 is provided with a positioning protrusion 44, the drainage seat 5 is provided with a positioning groove 53 matched with the positioning protrusion 44 in a positioning way, and the heat exchanger 4 and the drainage seat 5 are stacked together after being positioned.

To facilitate the mounting of the heat pipe 3, in one embodiment the heating assembly comprises a first heat pipe socket 6 and a second heat pipe socket 7, the heat pipe 3 being sandwiched between the first heat pipe socket 6 and the second heat pipe socket 7, the first heat pipe socket 6 having a first socket hole 61 through which the aerosol-generating substrate 1 is inserted into the heating chamber 31, the second heat pipe socket 7 having a second socket hole 71 through which the air flow entering the aerosol-generating substrate 1 passes. In one embodiment, the blocking edge 43 is clamped between the heat conductor 3 and the second heat conductor socket 7.

Specifically, in one embodiment, the insertion end 34 of the heat conduction pipe 3 is inserted into the first stem hole 61 and is interference-fitted with the first stem hole 61, and the ventilation end 35 is inserted into the second stem hole 71 and is interference-fitted with the second stem hole 71. The first heat conduction pipe seat 6 comprises a first seat body 62 and a sheath 63, and the first seat body 62 and the sheath 63 are integrally formed. One end of the sheath 63 is connected to the first base 62, and the other end is in interference fit with the second heat conduction pipe base 7. An annular space 8 is formed between the sheath 63 and the heat conducting pipe 3, and the annular space 8 can block heat from being transferred to the sheath 63, so that heat overflow is reduced. In order to further reduce heat conduction outwards, the inner wall of the sheath 63 is covered with a reflective film 9, infrared light can be reflected to the heat conducting tube 3 through the reflective film 9, the absorption of infrared light by the sheath 63 is reduced, and the temperature of the sheath 63 is lowered.

In addition to this, the heat pipe 3 may be assembled in any feasible way, such as the heat pipe 3 being directly fixed to the housing of the atomizing device for generating the aerosol; for another example, the insertion end 34 of the heat pipe 3 is fixed to the housing of the atomizing device for generating aerosol, and the ventilation end 35 is fixed to the second heat pipe holder 7, in which case the first heat pipe holder is not required.

In some embodiments of an aerosol-generating atomizing device, referring to fig. 1-4, the aerosol-generating atomizing device includes an aerosol-generating rod heating assembly, a power source 101, and a housing 102, the heating assembly being a heating assembly according to any of the embodiments described above, the power source 101 providing power to the aerosol-generating rod heating assembly. The power supply 101 and the aerosol-generating rod heating assembly are both housed in the housing 102.

The foregoing description of the utility model has been presented for purposes of illustration and description, and is not intended to be limiting. Several simple deductions, modifications or substitutions may also be made by a person skilled in the art to which the utility model pertains, based on the idea of the utility model.

Claims (10)

1. A heating assembly comprising a heat pipe and an electrical heating element disposed on the heat pipe; the heat conducting pipe is provided with a heating cavity for inserting an aerosol generating substrate, the pipe wall of the heat conducting pipe comprises at least two heating areas, the number of the electric heating elements is at least two, each heating area corresponds to at least one electric heating element, and the electric heating elements are used for heating the corresponding heating areas; the wall thickness of the pipe wall thinning part is smaller than that of the heating area.

2. The heating assembly of claim 1, wherein an outer side of the tube wall thinning portion faces the heat pipe inner recess and/or an inner side of the tube wall thinning portion faces the heat pipe outer recess.

3. A heating assembly as claimed in claim 1, wherein said wall thinning is provided between any pair of adjacent heating zones.

4. The heating assembly of claim 1, wherein the heating zone comprises a first heating zone and a second heating zone, the first heating zone and the second heating zone being disposed adjacent in a circumferential direction of the heat pipe, the pipe wall thinning extending axially along the heat pipe; or the first heating zone and the second heating zone are adjacently arranged in the axial direction of the heat conducting pipe, and the pipe wall thinning part continues along the circumferential direction of the heat conducting pipe.

5. The heating assembly of claim 1, wherein said electrical heating element is disposed on an outer surface of said heat pipe; or the electric heating element is coated on the inner surface of the heat conducting pipe; or the electric heating element is embedded into the pipe wall of the heat conducting pipe.

6. The heating assembly of any of claims 1-5, wherein the heat pipe comprises an airflow heating section and a generating rod heating section, the airflow heating section and the generating rod heating section being arranged in an axial direction of the heat pipe, the airflow heating section being for heating an airflow into the aerosol-generating substrate; a generating rod stopping structure is arranged in the airflow heating section and used for stopping the generating rod stopping structure from the end surface of the aerosol generating substrate inserted into the heating cavity so as to limit the depth of the aerosol generating substrate inserted into the heating cavity; the heating zone is located on the generating rod heating section.

7. The heating assembly of claim 6, wherein a heat exchanger is disposed within the airflow heating section, the airflow heating section in heat conductive contact with the heat exchanger, the heat exchanger having a plurality of airflow passages therein for passing airflow therethrough to heat the passing airflow.

8. The heating assembly of claim 7 wherein the generating rod retaining structure is a flow guide seat on one side of the heat exchanger, the flow guide seat having a generating rod retaining surface for retaining engagement with the aerosol generating substrate, the generating rod retaining surface being on a side of the flow guide seat facing away from the heat exchanger, the flow guide seat having a flow guide aperture in a center thereof for guiding an air flow from a center of an end face of the aerosol generating substrate into the aerosol generating substrate.

9. The heating assembly of claim 1 or 2, wherein the heating assembly comprises a first heat pipe socket and a second heat pipe socket, the heat pipe socket being sandwiched between the first heat pipe socket and the second heat pipe socket, the first heat pipe socket having a first socket hole through which the aerosol-generating substrate is inserted into the heating cavity, the second heat pipe socket having a second socket hole through which an airflow into the aerosol-generating substrate is passed.

10. An atomizing device for generating an aerosol, comprising a power source and a heating assembly according to any one of claims 1-9, the power source supplying power to the heating assembly.